ZZ-Mercury-Craters-Damer_Crater-PIA17812-PCF-LXTT-IPF.jpgThe Walls of Damer (Absolute Natural Colors; credits for the additional process. and color. Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)55 visiteThe (relatively) steep Walls of the Impact Crater named Damer are well highlighted in today's APOD. Named after the English sculptor, Anne Seymour Damer (née Conway, she was born in Sevenoaks - UK - on November, 8, 1749 and died in London on May, 28, 1828) earlier this year by the International Astronomical Union (or "IAU", for short), this approx. 60-Km diameter (such as about 37,26 miles) Impact Crater is distinguished by a massive and complex Central Peak that is almost completely covered with Hollows.
Date acquired: November, 13th, 2013
Images Mission Elapsed Time (MET): 26687033
Images ID: 5191249
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 36,25° North
Center Longitude: 243,40° East
Solar Incidence Angle: 68,3° (meaning that the Sun, at the time that the picture was taken, was about 21,7° above the imaged Local Mercurian Horizon)
Emission Angle: 3,0°
Sun-Mercury-Messenger (or "Phase") Angle: 65,3°
This frame (which is an Original NASA - MESSENGER Spacecraft's b/w and NON Map-Projected image-mosaic published on the NASA - Planetary Photojournal with the ID n. PIA 17812) has been additionally processed, contrast enhanced, magnified to aid the visibility of the details, Gamma corrected and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - MESSENGER Spacecraft and then looked down, towards the Western Edge of the Mercurian Impact Crater "Damer"), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team. Different colors, as well as different shades of the same color, mean, among other things, the existence of different Elements (Minerals) present on the Surface of Mercury, each having a different Albedo (---> Reflectivity) and Chemical Composition.MareKromium
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ZZ-Mercury-Craters-Wang_Meng_Crater-PIA17239-PCF-LXTT-IPF-01.jpgWang Meng Crater, in detail (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)55 visiteThe large Wang Meng Impact Basin (whose diameter is approx. 165 Km - such as about 102,465 miles) can clearly be see in this Extra Detail Magnification which is a crop taken mosaic made out of three frames obtained by the NASA - MESSENGER Spacecraft on April, 20, 2013. This Absolute Natural Color view of the Impact Basin shows us, among many other extremely interesting things, the strong contrast between the dark Low Reflectance Material (or "LRM", for short) which is located on the Eastern Portion of Wang Meng's Peak Ring and the brighter Western Portion of the Peak Ring itself, as well as the bright white Rays that spread across the lower right side (---> West) of the picture.
While some of the Hollows existing on and near the Crater's Peak Ring and Outer Rim are, somehow, "associated" (here and there, and always unevenly) with Low Reflectance Material, as evidenced by their bright white halos, the Rays that are visible here (---> such as towards the Western and South/Western sides of the frame) are, in fact, coming from other Impact Craters located in Wang Meng's proximities - including the small, fresh Impact Crater visible towards the upper right corner of the picture, just in betwenn the Peak Ring and the Outer Rim of Wang Meng.
Date acquired: April, 20th, 2013
Images Mission Elapsed Time (MET): 8743264, 8743256, 8743260
Images ID: 3915336, 3915334, 3915335
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 6,33° North
Center Longitude: 254,10° East
Solar Incidence Angle: 41,6° (meaning that the Sun, at the time that the pictures were taken, was about 48,4° above the imaged Local Mercurian Horizon)
Emission Angle: 0,2°
Sun-Mercury-Messenger (or "Phase") Angle: 41,7°
This frame (which is a crop taken from an Original NASA - MESSENGER Spacecraft's false colors and Map-Projected image-mosaic published on the NASA - Planetary Photojournal with the ID n. PIA 17239) has been additionally processed, contrast enhanced, magnified to aid the visibility of the details, Gamma corrected and then re-colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - MESSENGER Spacecraft and then looked down, towards the Mercurian Impact Crater "Wang Meng"), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team. Different colors, as well as different shades of the same color, mean, among other things, the existence of different Elements (Minerals) present on the Surface of Mercury, each having a different Albedo (---> Reflectivity) and Chemical Composition.MareKromium
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ZZ-Mercury-Rupes-Terror_Rupes-PIA17881-PCF-LXTT-IPF-00.jpgTerror Rupes (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)55 visiteThis is certainly not the first time that we can take a look at the Limb of Mercury and, just as usual, we have to underline that these kind of images never fail to showcase the Geological Diversities of the Innermost Planet of the Solar System. This time, something fills the scene with "terror" and that is, to be clear and precise, the "Terror Rupes", such as the long, Cliff-like Landform visible almost at (better yet to say "near"...) the center of the scene. Terror Rupes is one of Mercury's most prominent Lobate Scarps, and it was so named after the HMS (---> Her Majesty's Ship) Terror: an eighteenth-century warship that, later, participated in Scientific Polar Explorations.
Date acquired: February, 4th, 2012
Image Mission Elapsed Time (MET): 236853865
Image ID: 1353252
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 69,30° South
Center Longitude: 96,00° East
Solar Incidence Angle: 80,3° (meaning that the Sun, at the time that the picture was taken, was about 9,7° above the imaged Local Mercurian Horizon)
Emission Angle: 50,9°
Sun-Mercury-Messenger (or "Phase") Angle: 114,5°
This picture (which is an Original NASA - MESSENGER Spacecraft's b/w and NON-Map-Projected image published on the NASA - Planetary Photojournal with the ID n. PIA 17881) has been additionally processed, contrast enhanced, Gamma corrected, magnified to aid the visibility of the details and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - MESSENGER Spacecraft and then looked outside, towards the Southern Limb of Mercury), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team. Different colors, as well as different shades of the same color, mean, among other things, the existence of different Elements (Minerals) present on the Surface of Mercury, each having a different Albedo (---> Reflectivity) and Chemical Composition.MareKromium
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SATURN.jpgSaturn54 visitenessun commento
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